<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.staticfile.org/echarts/4.4.0-rc.1/echarts.js"></script>
</head>
<body>
    <div id="main" style="width: 600px;height:400px;"></div>

    <script>
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));

        // 指定图表的配置项和数据
        var option = {
            title: {
                text: 'ECharts 入门示例'
            },
            tooltip: {},
            legend: {
                data:['销量']
            },
            xAxis: {
                data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
            },
            yAxis: {},
            series: [{
                name: '销量',
                type: 'bar',
                data: [5, 20, 36, 10, 10, 20]
            }]
        };
        function show(){
            option.series[0].data[0] += 2;
            // 使用刚指定的配置项和数据显示图表。
            myChart.setOption(option);
        }

        function show2() {
            myChart.setOption({
                series : [
                    {
                        name: '访问来源',
                        type: 'pie',
                        radius: '55%',
                        data:[
                            {value:235, name:'视频广告'},
                            {value:274, name:'联盟广告'},
                            {value:310, name:'邮件营销'},
                            {value:335, name:'直接访问'},
                            {value:400, name:'搜索引擎'}
                        ]
                    }
                ]
            })

        }

        show();
    </script>

</body>
</html>
